A Beginner's Guide to the Fourth Dimension

Imagine 4d creatures using 3 dimensional screens to convey theories on 5 dimensions

fun fact: If you watch all of the dimension videos on Youtube, you become crazy and still don't get it.

I've watched many videos trying to understand 4D and this one has gotten me the closest. Well done.

Not sure if I completely understand the fourth dimension yet but I feel like this video has gotten me closer to it. Thank you.

Are we shadows of our 4d selves ?

to make 4d just add water, some shaking and air. (Cinemas would agree)

I read a book called Hyperspace by Michio Kaku once. There was a passage where someone proposed thinking of a cube, unfolding it into a 2d series of squares, making the squares into cubes and then refolding them into a cube as a means of picturing a hypercube. Also, I may be misinformed but I thought spacetime was a dimension.

I’ve watched many videos explaining 4D, some very good. This explained things I haven’t heard before.

is there a beginners guide for this beginners guide this shit too confusing for me

I love it when the smart people talk to the rest of us like we are people.

This was by far the best explanation I’ve seen. So good that I scoured the internet to find it again. Now if you can just get me to understand 11 dimensions

I really like how you rotate the tesseract to show that all squares inside are the same size, that really gives me a better understanding of its nature

Here's fuel for thought: as 3D beings, we can fully perceive anything and everything on a 2D plane (as demonstrated by the circle-in-the-box scenario), however due to the lack of the third dimention, a (theoretical) 2D person would find it impossible to look "up" and see us, as we simply exist above their dimension. Taking this one step further - if a 4D person was to look at a 3D plane, they too would be able to perceive everything at once - you, the house you're in, the plumbing of the house, your organs digesting your last meal... anything. And the scary part is, as we exist on a 3D plane, we would be completely unable to look "out" to see these 4D people. They could exist, and be watching you read this, right now, but you wouldn't be able to tell. ;)

It's interesting because we can't see 4D objects because we live in a 3D universe, however, hypothetically speaking, we could see the 3D shadows of 4D objects if we found some.

The 3D image of the moving tesserac really helped me understand things a lot better. It's like life blooms around you. You can open 3d objects up and around and back into themselves. Think flipping a doughnut inside out and back again.

I liked seeing the 2D shadow of a rotating cube behaving exactly the same way as the 2D shadow of the 3D shadow of the rotating tesseract. It really isn't as strange as it's usually claimed to be.

Imagine the horror Mario felt, being controlled by someone to smash objects with his heads, and can only see lines along his way, the horror is giving me anxiety.

Fourth Dimension: Spectator Mode

This is soooooo exciting. Especially when on considers using quaternions for rotations in higher dimensional spaces.

Just discovering this video now, but it definitely helped me understand 4 dimensional space better. The revolving/rotating tesseract was most helpful! Thank you!